MAP sensor

Hi Norbert,

I couldn't find these yesterday but that was because I was searching on ebay UK so switched to .com and found the ones you are talking about I think, the ones on thesamba.com are very similar and slightly cheaper so I'll probably use this site and keep my fingers crossed something works!

Hi Doug,

if nothing works at the end, we would try to create one working out of 2 others. But that is most probably not an economic way to do. So go for a used one.

Good morning,
The MAP sensor that I bought from Canada arrived yesterday so its fitted, unfortunately the car still isn't running correctly, it no longer black smokes but it is only running on 2 cylinders , 1 and 4 are not firing, I've checked the basics, spark, compression, wiring from all injectors back to the ECU, different ECU pulse generator contact breakers, all the earths, injectors pulses with just a multi meter for voltage and still no joy.
Can anyone help me I'm losing my way what should I check next or what should I have checked that I haven't?
Thanks Doug.

Just been looking through the trigger contacts section and spotted that there are 2 groups that are controlled, group1 controls cylinders 1 and 4 and group 2 controls cylinders 2 and 3, it can't be a coincidence that my car won't fire 1 and 4 can it? I'm thinking it must be related to the trigger contacts although when I tested them both groups seemed to be switching!

Hi Doug,
you are right. Cylinder 1 and 4 are the same group.

But - you told us before you tried different pulse generators (trigger contact sets).

I think, you should try to interchange the outer contacts <the groups> at the generator unit to be sure.

Regards
Norbert

Just a quick update, the cause of the running on only two cylinders was spark plugs, even though they were actually sparking in open air I'm assuming that as soon as they were refitted they were unable to function in compressed air!
However now it is running on all four again it has returned to black smoking and running extremely rich is it only temp switches that control this!

Doug.